SBM Head Stud Kit 12pt.

The SBM Head Stud Kit 12pt by ARP is designed for engine builders and high-performance enthusiasts who require maximum reliability under extreme conditions. This fastener system is specifically engineered for small-block engines, replacing factory head bolts with premium studs that maintain clamping force through repeated thermal cycles and boost pressures.

Manufactured from premium-grade alloy steel, ARP head studs offer a tensile strength that significantly exceeds OEM bolts, ensuring consistent preload retention even under high cylinder pressures. The 12-point design of the studs allows for more even load distribution across the fastener head, which reduces stress concentration and lowers the risk of shear failure at the critical interface between the head and block.

Ideal for performance engines, boosted applications, and high-load builds, this kit includes precision hardened washers and nuts, providing a complete fastening solution. Mechanics and engine builders trust ARP head studs when installing performance cylinder heads, turbochargers, superchargers, or nitrous systems, where stock fasteners may fail.